troast



(No Mod eh)" 2 sheets sh'eet 1. W. F. TROAST.

PADLOGK.

Patented Dec. 8, 1896.

w i/bum/xedl TY "M- (No Mbdel.) 2 Sheets-Sheet 2. W. F. TROAST.

PADLOO-K. No. 572,586 Patented Dec. 8, 1896.

UNITED STATES PATENT OFFICE.

XVILLIAM F. TROAST, OF LANCASTER, PENNSYLVANIA, ASSIGNOR TO THE SLAYMAKER-BARRY COMPANY, OF SAME PLACE.

PADLOCK.

SPECIFICATION formingpart of Letters Patent No. 572,586, dated December 8, 1896. Application filed April 16, 1895. Serial No. 545,857. (No model.)

To all whom it may concern.- Similar letters and numerals indicate like Be it known that I, \VILLIAM F. TROAST, a parts throughout the several views. citizen of the United States, residing in Lan- In the lock shown the case thereof is dicaster, inthe county of Lancaster and State vided edgewise parallel with its sides, and for 5 of Pennsylvania, have invented certain Imthe purposes of this specification the half of provements in Padlocks, of which the followthe case containing the principal parts for ing is a specification. holding the operating mechanism in place is This invention relates to improvements in called the bottom, and the other half the that class of devices employed for locking the top, similar relative terms being employed IO wheels of bicycles, or in securing other mechto designate the leaves of the locking-lever. anisms or parts in which a chain or similar Referring to the details of the drawings, A device is necessary to embrace the members indicates the bottom of the case; A, the top; to be locked together; and the object of the A the wing to which the chain is permainvention is to produce a lock of the characnent-ly attached; A the wing in which is se- I 5 ter described that is cheap and simple in concured the bolt carrying the detachable end struction and strong and reliable in use. of the chain; a, the rivet-holes through the The invention consists, first, in the mechwings, and a the rivets engaging said holes, anism for locking in the case the plug or bolt whereby the top and bottom of the case are by which the detachable end of the chain is fastened together.

20 secured to said case, and, second, in the 0011- B indicates the binding-chain, the central struction and combination of the various portions of which are cut away; B, the clevis parts, as hereinafter fullydescribed, and then by which one end of the chain is connected pointed out in the claims. directly with the case; B the clevis connect- In the accompanying drawings, which form ing. the chain with the bolt, and b the pins 2 5 a part of this specification, Figure 1 is a face securing the clevises to the case and bolt.

View of the lock-case, and Fig. 2 anedge view In wing A of both the bottom and top of of the same. Fig. ,3 is a perspective view of the case is formed a longitudinal groove, cl, the interior of the bottom of the case, the opextending from the outer end of said wing crating parts being removed; and Fig. 4, a into the recessed main portions, D D, respec- 0 similar View of the top of the case. Fig. 5 is tively, of said bottom and top, which grooves,

a perspectiveview of the bottom of the case, when the parts of the case are united, form showing the plug or bolt locked therein; and an opening through which the bolt E is in- Fig. 6, a top plan view of the same, showing serted; and extending back from the inner the bolt and the spring actuating the same ends of said grooves are registering ribs d,

3 5 removed. Fig. 7 is a vertical section of the the outer edges of which range with the bot entire lock-case on broken line 7 '7, Fig. 3. toms of said grooves and direct the end of Fig. 8 is a side view of the key. Fig. 9 is a the bolt E, so as to engage the same between bottom view of the locking-levers, showing the leaves of the locking-lever. On the sides the bolt engaged thereby; Fig. 10, a similar of and parallel with ribs d are ribs (1 and d 40 top view of the same 5 Fig. 11, an edge or side the ribs (1 having shoulders on their inner view of the locking-levers and bolt, occupyends, with curved recesses (1 formed thereing the position shown in Fig. 10, and having in, the rims of which recesses form wards a part cut away; Fig. 12, a top View of said that engage notches K in the key; and in the levers, the parts being shown in the position top of the case, back of rib d, is a stud, (1 also 5 occupied thereby as the bolt is being ejected having a curved recess, 01. The ribs (1 of the from the case; and Fig. 13, an edge or side top register with the ribs d d of the bottom, view of the same. Fig. l i is a rear end View and the stud d of the top, with the inner end of the locking-levers, and Fig. 15 a face View of a key-guide in the bottom,as shown in IOO of the keyhole-guard. Figs. 16, 17, and 18 Fig. 7.

50 are perspective Views of a modified construc- In the sides of the top and bottom of the tion of the locking-levers, showing their apcase are registering semicircular recesses e, plication to a fast-shackle lock. having wings e, which together form thekeyhole E, (shown in Fig. 2,) and inside of these recesses are curved sockets 6 in which is located the usual annular keyhole-guard, F. (Shown in Fig. 15.) In the bottom of the case and extending inward on opposite sides of the keyhole are parallel ribs 6 forming a key-guide, the inner ends, 6 of said ribs being reduced in height, to afford space for the movement of the upper locking-lever. Between ribs 6 are wards e e, having concave upper edges, the ward e registering with stud d A rib, f, extends back from the rib c on the side of the key-guide opposite the bolt-opening, and has on its end two posts, f, forming a groove, f at right angles with said boltopening; and opposite posts f are similar posts, f also forming a groove, f which ranges with the groove between posts f.

G and H indicate, respectively, the top and bottom locking-levers. Each of these levers has a broadened leaf forming its forward end and a reduced shank, g and h, respectively, forming the rear end. On the sides of each shank are trunnions, g h, adapted to engage the grooves, f between posts f and f, the trunnions g resting in said grooves above trunnions 71.. Behind the trunnions the inner faces of shanks g and h are hollowed out, as seen in Fig. 14, and in the cavities thus formed there engage the ends of a coiled spring, S. The ends of the trunnions g h on each side of the levers are held in their proper relative positions, or are bound together, by collars I, embracing the same inside of posts f f whereby action of spring S serves to close the leaves of the levers upon each other. The leaf of lever G has a longitudinal slot, g therein constructed to take over stud 5, to allow free play for said leaf; and a neck, 7L2, connects one side of the leaf of lever II with a side of its shank h, said neck playing in a channel, a between rib d of the bottom of the case and the end of the key-guide. In the free end of each leaf is a cross-shaped opening, t', the longitudinal arm, i, of which extends through said end, dividing the same into jaws, the inner edges of the ends whereof are beveled, as shown at 7?; and in the inner faces of the leaves, just back of the transverse parts of openings 11, are transverse registering grooves m, forming a channel for the end, M, of a spring coiled around a post, N, located outside of rib d of the bottom of the case. The end on of said spring bears against the wall of the case, and end M passes between the adjacent ribs (1 of the top and bottom of said case inside of the shoulders on said ribs. In rear of grooves m the inner faces of the leaf of lever G and the neck ha of lever II are concave in outline, as seen at m Figs. 11 and 13, to facilitate the engagement therewith of bits K of the key.

E indicates a bolt, the head R of which has a perforation, 7, through which clevis B is connected therewith. On the inner end of the bolt is a cross-shaped stein, r, adapted to engage the cross-shaped openings, 7;, of the levers G and H. The engagement of the wings r of stem 0'' with the wings '11 of said openiugs locks the bolt in the case. Then the bolt is so locked, the leaves of the levers are closed upon each other and the stem r engaged with the openings t' of both levers, the wings, T of the bolt-stem interlocking with the wings, i of openings '5, and the spring M lies in the channel formed by grooves m. To unlock the bolt, the key is revolved in the look so as to spread the leaves of the levers apart and release the spring M, when said bolt is automatically ejected by engagement of the spring therewith, as shown in Figs. 12 and 13. While the bolt is detached from the lock, spring M maintains the position illustrated in those figures, thus holding the levers open to reengage the bolt therewith, which is done by forcing it inward until said spring is pushed back into channel mm and the openings 1' again embrace stem r, the beveled edges, t of the jaws of the levers facilitating the engagement of the bolt therewith.

The locking-levers G and II are located with their faces parallel with the faces or top and bottom of the case, so that the top and bottom plates of said case limit the movement of the vibrating ends of the lockin g'levers when opened to release the bolt, thus avoiding the necessity of the construction of any special device for that purpose. The stem of the bolt and the openings in the vibrating ends of the locking-levers are rectangular in out line, to prevent the twisting and turning of the bolt in the lock-ease, to prevent rattling and wearing of the parts.

Two levers are employed to more surely prevent disengagement of the bolt by accidental jarring open of either one thereof, as the tension of spring S will cause the leaves of the levers to follow the movements of each other, so that either one or the other of the openings 1' would be engaged with stem 0*. One lever, however-t-he upper,forinstance could be used alone by lessening the depth of the grooves in which its trunnions rest and by bearing the lower end of spring S on the bottom of the case; and instead of rib d a bearing could be formed for the leaf of the lever by substituting a platform for said rib, as shown by broken lines t, Fig. 3, and mak ing the top thereof flush with the bottom of groove (1.

It will be observed that the upper lever is thicker than the lower. This is to avoid undue thickness of the lock, and because the upper lever has more play in the case than the lower and, engaging more of the bolt,has more strain put upon it. plied in different ways to securing bolts in position. In Figs. 16 and 17 they are shown as applied to securing in position a sliding bolt, 2, adapted to engage the swinging arm, 3, of a fast-shackle in the case. WVith this construction the bolt 2 is held permanently between the leaves 4: of the levers and has a These locking-levers can be ap longitudinal movement between the same. WVhen the bolt-head 5 is engaged with the notch 6 of the swinging arm of the shackle, as shown in Fig. 16, the ends of leaves 4 abut against the back of said head, to prevent the same from becoming accidentally detached from said notch, the leaves of the lever being held apart by the stud 7 on the back of head 5. In turning the key to detach the bolt from the shackle, bits thereon first engage the inner faces, 8, of leaves 4 and spread them apart, which being done another bit bears against shoulder 9 of the bolt and forces said bolt out of engagement with the notch 6 and back into the position shown in Fig. 17.

I do not confine myself to the details of construction herein shown and described, as it is obvious that many alterations may be made therein without departing from the principle and scope of my invention; neither do I restrict myself to the application of the locking-levers or the bolt to any particular kind of lock.

Having thus described my invention, what I claim as new, and desire to secure byLetters Patent, is-- 1. The combination, in a lock, of a bolt having shoulders on opposite sides thereof, a jaw having a recess therein constructed to embrace both said sides of the bolt, and shoulders in opposite sides of said recess and adapted to interlock with the shoulders on both sides of the bolt.

2. The combination, in a lock, of a bolt having shoulders on opposite sides thereof, jaws, each of which has a recess therein constructed to embrace both said sides of the bolt, and shoulders in opposite sides of the recess of each of the locking-jaws and adapted to interlock with the shoulders on both sides of the bolt.

3. The combination, in a lock, of a bolt having shoulders on opposite sides thereof, a pair of lever-jaws, each of which has a re cess therein constructed to embrace both said sides of the bolt, shoulders in opposite sides of the recess of each of the locking-jaws and adapted to interlock with the shoulders on .both sides of the bolt, and an expanding spring located between the rear arms of the levers, for the purpose specified.

4. The combination, in a lock, of a bolt, a

pair of levers adapted to close upon each other and secure the bolt in a fixed position, trunnions formed with each of said levers and constituting the fulcrumsthereof, and means for securing the trunnions in position.

5. The combination, in a lock, of a bolt, a pair of levers having trunnions thereon, collars embracing the corresponding trunnions of the levers, and jaws on the levers in front of the trunnions and adapted to lock the bolt in a fixed position.

6. The combination, in a lock, of a bolt, a pair of spring-actuated levers having trunnions thereon, collars embracing the corresponding trunnions of the levers, and jaws on the levers in front of the trunnions and adapted to lock the bolt in a fixed position.

7. 'Thecombination, in a lock, of a bolt, a pair of levers having trunnions thereon, collars embracing the corresponding trunnions of the levers, jaws on the levers in front of the trunnions and adapted to lock the bolt in a fixed position, and an expanding spring located between the arms of the levers in rear of said trunnions, for the purpose specified.

8. In a lock, the combination, with a bolt, of a pair of levers having trunnions on the sides thereof, collars embracing the trunnions, jaws on the levers and in front of the trunnions, said jaws being adapted to embrace said bolt and lock the same in a fixed posit-ion, and an expanding spring located between the arms of the levers in rear of said trunnions, for the purpose specified.

9. The combination, in a lock, of a case havin g a bolt-openin g therein, a pair of vibrating jaws, a bolt constructed to engage said boltopening and interlock with the vibrating jaws, a spring engaged between said jaws and adapted to be released therefrom by the disengagement of the jaws from the bolt, to eject the bolt from the case.

10. In a lock, the combination, with a case having a bolt-opening, of a pair of levers disposed lengthwise in front of said opening, trunnions on the sides of the levers and engaging grooves in the case, means for binding the trunnions in their relative positions, jaws on the front arms of the levers and having T-shaped recesses therein, an expanding spring located between the arms of the levers and behind the trunnions, and a bolt constructed to engage the bolt-opening and having a T-shaped head adapted to interlock with the T-shaped recesses in said jaws.

11. In a lock, the combination, with a case having a bolt-opening, of a pair of levers disposed lengthwise in front of said opening, trunnions on the sides of the levers and e11- gaging grooves in the case, means for binding the trunnions in their relative positions, an expanding spring located between the arms of the levers behind the trunnions, jaws on the front arms of the levers and having T-shaped recesses therein, ribs extending inward from the bolt-opening and ranging with the stem of said T-shaped recesses and having their free edges forming a prolongation of the top and bottom surfaces of the key-opening, and a bolt constructed to engage said bolt-opening and having a T-shaped head adapted to interlock with the T-shaped recesses in the aws.

12. In a lock, the combination, with a case having a boltppening, of a pair of levers disposed lengthwise in front of said opening, trunnions on the sides of the levers and engaging grooves in the case, means for binding the trunnions in their relative positions, an expanding spring located between the arms of the levers in rear of thetrunnions, jaws on the front arms of the levers and having T- shaped recesses therein, transverse grooves formed in the inner faces of the levers behind said recesses, a bolt constructed to engage said bolt-opening and having a T-shaped head adapted to interlock with the T-shaped recesses in the jaws, and a spring engaging said transverse grooves in the levers and adapted to eject the bolt when disengaged from said levers.

13. In a lock, the combination, with a case having a bolt-openin g, of a key-guide perpendicularto the direction of said bolt-opening, a pair of levers disposed lengthwise in front of said opening, trunnions on the sides of the levers and engaging grooves in the case,1neans for binding the trunnions in their relative positions, an expanding spring located between the arms of the levers in rear of the trunnions, a jaw forming the front arm of the lower lever and connected with the rear arnr thereof by a neck playing in a groove in rear of said key-guide, a jaw forming the front arm end of the key-guide, the free ends of said jaws having T-shaped recesses formed therein, and a bolt constructed to engage said boltopening and having a T-shaped head adapted to interlock with the T-shaped recesses in the jaws, substantially as and for the purpose specified.

14c. The combination, in a lock, of a bolt having a T-shaped head, a pair of levers adapted to vibrate in a plane perpendicular to. the faces of the case and having T-shaped recesses in their front ends, said recesses be ing constructed to embrace the edges of said head, trunnions on the sides of the levers, collars embracing the trunnions, and an expanding spring between the arms of the levers in rear of said trunnions, for the purpose specified.

VILLIAM F. TROAST.

Vitnesses:

WILLIAM H. KELLER, WM. R. GERHART. 

